Brig,
I heard you have spoken to Mr George Kuney of Div11 ... great ... that's excellent that someone was able to help.
Now for a little advice ...
You need to tie your boat down ... and I do not mean w/ those screw-in "Dog Spikes", OK. Those are useless in any kind of decent wind. Here are several ideas.
Find you nearest "Arborist Supply House" and purchase some "Ground Anchors/Tie-Downs". They come in multible sizes ... for dirt I would recommend a 24"lg w/ 4" disc ($6-8ea), for a sandy beach I would recommend a 36"lg w/ a 6" disc ($8-10ea). I use a 36"lg breaker/wrecking bar and a piece of pipe (for additional leverage) to spin the anchor into the ground (you will get dizzy). We generaly use (2) ... one under each crossbar as the boat can "spin" if you use only one. Somepeople use (2) w/ one on each side of the boat and tie the trapeze wires to the ground anchors.
Or you can use a shovel and dig a 2'deep hole and bury a cementblock (or old tire) w/ a tiedown line attached.
Remember you tie the boat down not to protect the boat .... but to protect everything else "AROUND" the boat.
I just recieved word that a bunch of small boats at my Yacht Club got "tossed" around the other day also ... so you weren't the only one ....
Harry Murphey